Advertisements
Advertisements
प्रश्न
What are 'true breeding lines' that are used to study inheritance pattern of traits in plants?
उत्तर
True breeding lines are those plants that have been generated through repeated self-pollination and have become homozygous for a particular trait. The trait is passed on to posterity if bred with another true breeding plant.
APPEARS IN
संबंधित प्रश्न
How does the gene 'I' control ABO blood groups in humans ? Write the effect the gene has on the structure of red blood cells.
State a difference between a gene and an allele.
With the help of one example, explain the phenomena of co-dominance and multiple allelism in human population.
How can test cross decipher the heterozygosity of a plant?
Give a scientific term for the following:
An alternative form of the single gene which influences the same character and produces different expressions in different individuals a species.
Explain Pleiotropy with reference to phenylketonuria.
Given below is the representation of a relevant part of the amino acid composition of the β-chain of hemoglobin, related to the shape of human red blood cells.
(a) Is this representation of the sequence of amino acids indicating a normal human or a sufferer from certain blood related genetic diseases? Give reasons in support of your answer.
(b) Why is the disease referred to as a Mendelian disorder? Explain.
In blood:
Which of the following illustrates pleiotropy?
Four triplet codons code for the amino acid valine. Three of them are given below.
GUU GUC GUA
Write the fourth codon.
